content: /*
   * 支付宝开放平台API
   * 支付宝开放平台v3协议文档
   *
   * The version of the OpenAPI document: 2025-08-26
   * 
   *
   * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
   * https://openapi-generator.tech
   * Do not edit the class manually.
   */
  
  
  package com.alipay.v3.model;
  
  import java.util.Objects;
  import java.util.Arrays;
  import com.google.gson.TypeAdapter;
  import com.google.gson.annotations.JsonAdapter;
  import com.google.gson.annotations.SerializedName;
  import com.google.gson.stream.JsonReader;
  import com.google.gson.stream.JsonWriter;
  import io.swagger.annotations.ApiModel;
  import io.swagger.annotations.ApiModelProperty;
  import java.io.IOException;
  
  import com.google.gson.Gson;
  import com.google.gson.GsonBuilder;
  import com.google.gson.JsonArray;
  import com.google.gson.JsonDeserializationContext;
  import com.google.gson.JsonDeserializer;
  import com.google.gson.JsonElement;
  import com.google.gson.JsonObject;
  import com.google.gson.JsonParseException;
  import com.google.gson.TypeAdapterFactory;
  import com.google.gson.reflect.TypeToken;
  
  import java.lang.reflect.Type;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Map.Entry;
  import java.util.Set;
  
  import com.alipay.v3.JSON;
  
  /**
   * InvoiceItemOpenModel
   */
  @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
  public class InvoiceItemOpenModel {
    public static final String SERIALIZED_NAME_ITEM_EX_TAX_AMOUNT = "item_ex_tax_amount";
    @SerializedName(SERIALIZED_NAME_ITEM_EX_TAX_AMOUNT)
    private String itemExTaxAmount;
  
    public static final String SERIALIZED_NAME_ITEM_NAME = "item_name";
    @SerializedName(SERIALIZED_NAME_ITEM_NAME)
    private String itemName;
  
    public static final String SERIALIZED_NAME_ITEM_NO = "item_no";
    @SerializedName(SERIALIZED_NAME_ITEM_NO)
    private String itemNo;
  
    public static final String SERIALIZED_NAME_ITEM_QUANTITY = "item_quantity";
    @SerializedName(SERIALIZED_NAME_ITEM_QUANTITY)
    private Integer itemQuantity;
  
    public static final String SERIALIZED_NAME_ITEM_SPEC = "item_spec";
    @SerializedName(SERIALIZED_NAME_ITEM_SPEC)
    private String itemSpec;
  
    public static final String SERIALIZED_NAME_ITEM_SUM_AMOUNT = "item_sum_amount";
    @SerializedName(SERIALIZED_NAME_ITEM_SUM_AMOUNT)
    private String itemSumAmount;
  
    public static final String SERIALIZED_NAME_ITEM_TAX_AMOUNT = "item_tax_amount";
    @SerializedName(SERIALIZED_NAME_ITEM_TAX_AMOUNT)
    private String itemTaxAmount;
  
    public static final String SERIALIZED_NAME_ITEM_TAX_RATE = "item_tax_rate";
    @SerializedName(SERIALIZED_NAME_ITEM_TAX_RATE)
    private String itemTaxRate;
  
    public static final String SERIALIZED_NAME_ITEM_UNIT = "item_unit";
    @SerializedName(SERIALIZED_NAME_ITEM_UNIT)
    private String itemUnit;
  
    public static final String SERIALIZED_NAME_ITEM_UNIT_PRICE = "item_unit_price";
    @SerializedName(SERIALIZED_NAME_ITEM_UNIT_PRICE)
    private String itemUnitPrice;
  
    public static final String SERIALIZED_NAME_ROW_TYPE = "row_type";
    @SerializedName(SERIALIZED_NAME_ROW_TYPE)
    private String rowType;
  
    public InvoiceItemOpenModel() { 
    }
  
    public InvoiceItemOpenModel itemExTaxAmount(String itemExTaxAmount) {
      
      this.itemExTaxAmount = itemExTaxAmount;
      return this;
    }
  
     /**
     * 明细行不含税金额，单位元，保留两位小数
     * @return itemExTaxAmount
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "明细行不含税金额，单位元，保留两位小数")
  
    public String getItemExTaxAmount() {
      return itemExTaxAmount;
    }
  
  
    public void setItemExTaxAmount(String itemExTaxAmount) {
      this.itemExTaxAmount = itemExTaxAmount;
    }
  
  
    public InvoiceItemOpenModel itemName(String itemName) {
      
      this.itemName = itemName;
      return this;
    }
  
     /**
     * 开票项目：货物或应税劳务、服务名称
     * @return itemName
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "开票项目：货物或应税劳务、服务名称")
  
    public String getItemName() {
      return itemName;
    }
  
  
    public void setItemName(String itemName) {
      this.itemName = itemName;
    }
  
  
    public InvoiceItemOpenModel itemNo(String itemNo) {
      
      this.itemNo = itemNo;
      return this;
    }
  
     /**
     * 国税局制定的商品税收编码，必须是最末级
     * @return itemNo
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "国税局制定的商品税收编码，必须是最末级")
  
    public String getItemNo() {
      return itemNo;
    }
  
  
    public void setItemNo(String itemNo) {
      this.itemNo = itemNo;
    }
  
  
    public InvoiceItemOpenModel itemQuantity(Integer itemQuantity) {
      
      this.itemQuantity = itemQuantity;
      return this;
    }
  
     /**
     * 数量； 1.当row_type&#x3D;0或2且item_unit_price为空，可空； 2.可精确到小数点后6位
     * @return itemQuantity
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "数量； 1.当row_type=0或2且item_unit_price为空，可空； 2.可精确到小数点后6位")
  
    public Integer getItemQuantity() {
      return itemQuantity;
    }
  
  
    public void setItemQuantity(Integer itemQuantity) {
      this.itemQuantity = itemQuantity;
    }
  
  
    public InvoiceItemOpenModel itemSpec(String itemSpec) {
      
      this.itemSpec = itemSpec;
      return this;
    }
  
     /**
     * 规格型号
     * @return itemSpec
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "规格型号")
  
    public String getItemSpec() {
      return itemSpec;
    }
  
  
    public void setItemSpec(String itemSpec) {
      this.itemSpec = itemSpec;
    }
  
  
    public InvoiceItemOpenModel itemSumAmount(String itemSumAmount) {
      
      this.itemSumAmount = itemSumAmount;
      return this;
    }
  
     /**
     * 明细行价税合计，单位元，必须保证item_sum_amount&#x3D;item_ex_tax_amount+item_tax_amount。
     * @return itemSumAmount
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "明细行价税合计，单位元，必须保证item_sum_amount=item_ex_tax_amount+item_tax_amount。")
  
    public String getItemSumAmount() {
      return itemSumAmount;
    }
  
  
    public void setItemSumAmount(String itemSumAmount) {
      this.itemSumAmount = itemSumAmount;
    }
  
  
    public InvoiceItemOpenModel itemTaxAmount(String itemTaxAmount) {
      
      this.itemTaxAmount = itemTaxAmount;
      return this;
    }
  
     /**
     * 明细行税额，单位元，保留两位小数，无税或者免税情况下输入：0.00。
     * @return itemTaxAmount
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "明细行税额，单位元，保留两位小数，无税或者免税情况下输入：0.00。")
  
    public String getItemTaxAmount() {
      return itemTaxAmount;
    }
  
  
    public void setItemTaxAmount(String itemTaxAmount) {
      this.itemTaxAmount = itemTaxAmount;
    }
  
  
    public InvoiceItemOpenModel itemTaxRate(String itemTaxRate) {
      
      this.itemTaxRate = itemTaxRate;
      return this;
    }
  
     /**
     * 明细行税率，无税或者免税情况下输入：0.00。
     * @return itemTaxRate
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "明细行税率，无税或者免税情况下输入：0.00。")
  
    public String getItemTaxRate() {
      return itemTaxRate;
    }
  
  
    public void setItemTaxRate(String itemTaxRate) {
      this.itemTaxRate = itemTaxRate;
    }
  
  
    public InvoiceItemOpenModel itemUnit(String itemUnit) {
      
      this.itemUnit = itemUnit;
      return this;
    }
  
     /**
     * 单位
     * @return itemUnit
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "单位")
  
    public String getItemUnit() {
      return itemUnit;
    }
  
  
    public void setItemUnit(String itemUnit) {
      this.itemUnit = itemUnit;
    }
  
  
    public InvoiceItemOpenModel itemUnitPrice(String itemUnitPrice) {
      
      this.itemUnitPrice = itemUnitPrice;
      return this;
    }
  
     /**
     * 不含税单价（元）; 1.当row_type&#x3D;0或2且item_quantity为空，可空 2.可精确到小数点后8位；
     * @return itemUnitPrice
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "不含税单价（元）; 1.当row_type=0或2且item_quantity为空，可空 2.可精确到小数点后8位；")
  
    public String getItemUnitPrice() {
      return itemUnitPrice;
    }
  
  
    public void setItemUnitPrice(String itemUnitPrice) {
      this.itemUnitPrice = itemUnitPrice;
    }
  
  
    public InvoiceItemOpenModel rowType(String rowType) {
      
      this.rowType = rowType;
      return this;
    }
  
     /**
     * 发票行性质：0表示正常行，1表示折扣行，2表示被折扣行。
     * @return rowType
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "发票行性质：0表示正常行，1表示折扣行，2表示被折扣行。")
  
    public String getRowType() {
      return rowType;
    }
  
  
    public void setRowType(String rowType) {
      this.rowType = rowType;
    }
  
    /**
     * A container for additional, undeclared properties.
     * This is a holder for any undeclared properties as specified with
     * the 'additionalProperties' keyword in the OAS document.
     */
    private Map<String, Object> additionalProperties;
  
    /**
     * Set the additional (undeclared) property with the specified name and value.
     * If the property does not already exist, create it otherwise replace it.
     *
     * @param key name of the property
     * @param value value of the property
     * @return the InvoiceItemOpenModel instance itself
     */
    public InvoiceItemOpenModel putAdditionalProperty(String key, Object value) {
      if (this.additionalProperties == null) {
          this.additionalProperties = new HashMap<String, Object>();
      }
      this.additionalProperties.put(key, value);
      return this;
    }
  
    /**
     * Return the additional (undeclared) property.
     *
     * @return a map of objects
     */
    public Map<String, Object> getAdditionalProperties() {
      return additionalProperties;
    }
  
    /**
     * Return the additional (undeclared) property with the specified name.
     *
     * @param key name of the property
     * @return an object
     */
    public Object getAdditionalProperty(String key) {
      if (this.additionalProperties == null) {
          return null;
      }
      return this.additionalProperties.get(key);
    }
  
  
    @Override
    public boolean equals(Object o) {
      if (this == o) {
        return true;
      }
      if (o == null || getClass() != o.getClass()) {
        return false;
      }
      InvoiceItemOpenModel invoiceItemOpenModel = (InvoiceItemOpenModel) o;
      return Objects.equals(this.itemExTaxAmount, invoiceItemOpenModel.itemExTaxAmount) &&
          Objects.equals(this.itemName, invoiceItemOpenModel.itemName) &&
          Objects.equals(this.itemNo, invoiceItemOpenModel.itemNo) &&
          Objects.equals(this.itemQuantity, invoiceItemOpenModel.itemQuantity) &&
          Objects.equals(this.itemSpec, invoiceItemOpenModel.itemSpec) &&
          Objects.equals(this.itemSumAmount, invoiceItemOpenModel.itemSumAmount) &&
          Objects.equals(this.itemTaxAmount, invoiceItemOpenModel.itemTaxAmount) &&
          Objects.equals(this.itemTaxRate, invoiceItemOpenModel.itemTaxRate) &&
          Objects.equals(this.itemUnit, invoiceItemOpenModel.itemUnit) &&
          Objects.equals(this.itemUnitPrice, invoiceItemOpenModel.itemUnitPrice) &&
          Objects.equals(this.rowType, invoiceItemOpenModel.rowType)&&
          Objects.equals(this.additionalProperties, invoiceItemOpenModel.additionalProperties);
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(itemExTaxAmount, itemName, itemNo, itemQuantity, itemSpec, itemSumAmount, itemTaxAmount, itemTaxRate, itemUnit, itemUnitPrice, rowType, additionalProperties);
    }
  
    @Override
    public String toString() {
      StringBuilder sb = new StringBuilder();
      sb.append("class InvoiceItemOpenModel {\n");
      sb.append("    itemExTaxAmount: ").append(toIndentedString(itemExTaxAmount)).append("\n");
      sb.append("    itemName: ").append(toIndentedString(itemName)).append("\n");
      sb.append("    itemNo: ").append(toIndentedString(itemNo)).append("\n");
      sb.append("    itemQuantity: ").append(toIndentedString(itemQuantity)).append("\n");
      sb.append("    itemSpec: ").append(toIndentedString(itemSpec)).append("\n");
      sb.append("    itemSumAmount: ").append(toIndentedString(itemSumAmount)).append("\n");
      sb.append("    itemTaxAmount: ").append(toIndentedString(itemTaxAmount)).append("\n");
      sb.append("    itemTaxRate: ").append(toIndentedString(itemTaxRate)).append("\n");
      sb.append("    itemUnit: ").append(toIndentedString(itemUnit)).append("\n");
      sb.append("    itemUnitPrice: ").append(toIndentedString(itemUnitPrice)).append("\n");
      sb.append("    rowType: ").append(toIndentedString(rowType)).append("\n");
      sb.append("    additionalProperties: ").append(toIndentedString(additionalProperties)).append("\n");
      sb.append("}");
      return sb.toString();
    }
  
    /**
     * Convert the given object to string with each line indented by 4 spaces
     * (except the first line).
     */
    private String toIndentedString(Object o) {
      if (o == null) {
        return "null";
      }
      return o.toString().replace("\n", "\n    ");
    }
  
  
    public static HashSet<String> openapiFields;
    public static HashSet<String> openapiRequiredFields;
  
    static {
      // a set of all properties/fields (JSON key names)
      openapiFields = new HashSet<String>();
      openapiFields.add("item_ex_tax_amount");
      openapiFields.add("item_name");
      openapiFields.add("item_no");
      openapiFields.add("item_quantity");
      openapiFields.add("item_spec");
      openapiFields.add("item_sum_amount");
      openapiFields.add("item_tax_amount");
      openapiFields.add("item_tax_rate");
      openapiFields.add("item_unit");
      openapiFields.add("item_unit_price");
      openapiFields.add("row_type");
  
      // a set of required properties/fields (JSON key names)
      openapiRequiredFields = new HashSet<String>();
    }
  
   /**
    * Validates the JSON Object and throws an exception if issues found
    *
    * @param jsonObj JSON Object
    * @throws IOException if the JSON Object is invalid with respect to InvoiceItemOpenModel
    */
    public static void validateJsonObject(JsonObject jsonObj) throws IOException {
        if (jsonObj == null) {
          if (InvoiceItemOpenModel.openapiRequiredFields.isEmpty()) {
            return;
          } else { // has required fields
            throw new IllegalArgumentException(String.format("The required field(s) %s in InvoiceItemOpenModel is not found in the empty JSON string", InvoiceItemOpenModel.openapiRequiredFields.toString()));
          }
        }
        if (jsonObj.get("item_ex_tax_amount") != null && !jsonObj.get("item_ex_tax_amount").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `item_ex_tax_amount` to be a primitive type in the JSON string but got `%s`", jsonObj.get("item_ex_tax_amount").toString()));
        }
        if (jsonObj.get("item_name") != null && !jsonObj.get("item_name").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `item_name` to be a primitive type in the JSON string but got `%s`", jsonObj.get("item_name").toString()));
        }
        if (jsonObj.get("item_no") != null && !jsonObj.get("item_no").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `item_no` to be a primitive type in the JSON string but got `%s`", jsonObj.get("item_no").toString()));
        }
        if (jsonObj.get("item_spec") != null && !jsonObj.get("item_spec").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `item_spec` to be a primitive type in the JSON string but got `%s`", jsonObj.get("item_spec").toString()));
        }
        if (jsonObj.get("item_sum_amount") != null && !jsonObj.get("item_sum_amount").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `item_sum_amount` to be a primitive type in the JSON string but got `%s`", jsonObj.get("item_sum_amount").toString()));
        }
        if (jsonObj.get("item_tax_amount") != null && !jsonObj.get("item_tax_amount").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `item_tax_amount` to be a primitive type in the JSON string but got `%s`", jsonObj.get("item_tax_amount").toString()));
        }
        if (jsonObj.get("item_tax_rate") != null && !jsonObj.get("item_tax_rate").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `item_tax_rate` to be a primitive type in the JSON string but got `%s`", jsonObj.get("item_tax_rate").toString()));
        }
        if (jsonObj.get("item_unit") != null && !jsonObj.get("item_unit").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `item_unit` to be a primitive type in the JSON string but got `%s`", jsonObj.get("item_unit").toString()));
        }
        if (jsonObj.get("item_unit_price") != null && !jsonObj.get("item_unit_price").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `item_unit_price` to be a primitive type in the JSON string but got `%s`", jsonObj.get("item_unit_price").toString()));
        }
        if (jsonObj.get("row_type") != null && !jsonObj.get("row_type").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `row_type` to be a primitive type in the JSON string but got `%s`", jsonObj.get("row_type").toString()));
        }
    }
  
    public static class CustomTypeAdapterFactory implements TypeAdapterFactory {
      @SuppressWarnings("unchecked")
      @Override
      public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
         if (!InvoiceItemOpenModel.class.isAssignableFrom(type.getRawType())) {
           return null; // this class only serializes 'InvoiceItemOpenModel' and its subtypes
         }
         final TypeAdapter<JsonElement> elementAdapter = gson.getAdapter(JsonElement.class);
         final TypeAdapter<InvoiceItemOpenModel> thisAdapter
                          = gson.getDelegateAdapter(this, TypeToken.get(InvoiceItemOpenModel.class));
  
         return (TypeAdapter<T>) new TypeAdapter<InvoiceItemOpenModel>() {
             @Override
             public void write(JsonWriter out, InvoiceItemOpenModel value) throws IOException {
               JsonObject obj = thisAdapter.toJsonTree(value).getAsJsonObject();
               obj.remove("additionalProperties");
               // serialize additonal properties
               if (value.getAdditionalProperties() != null) {
                 for (Map.Entry<String, Object> entry : value.getAdditionalProperties().entrySet()) {
                   if (entry.getValue() instanceof String)
                     obj.addProperty(entry.getKey(), (String) entry.getValue());
                   else if (entry.getValue() instanceof Number)
                     obj.addProperty(entry.getKey(), (Number) entry.getValue());
                   else if (entry.getValue() instanceof Boolean)
                     obj.addProperty(entry.getKey(), (Boolean) entry.getValue());
                   else if (entry.getValue() instanceof Character)
                     obj.addProperty(entry.getKey(), (Character) entry.getValue());
                   else {
                     obj.add(entry.getKey(), gson.toJsonTree(entry.getValue()).getAsJsonObject());
                   }
                 }
               }
               elementAdapter.write(out, obj);
             }
  
             @Override
             public InvoiceItemOpenModel read(JsonReader in) throws IOException {
               JsonObject jsonObj = elementAdapter.read(in).getAsJsonObject();
               validateJsonObject(jsonObj);
               // store additional fields in the deserialized instance
               InvoiceItemOpenModel instance = thisAdapter.fromJsonTree(jsonObj);
               for (Map.Entry<String, JsonElement> entry : jsonObj.entrySet()) {
                 if (!openapiFields.contains(entry.getKey())) {
                   if (entry.getValue().isJsonPrimitive()) { // primitive type
                     if (entry.getValue().getAsJsonPrimitive().isString())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsString());
                     else if (entry.getValue().getAsJsonPrimitive().isNumber())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsNumber());
                     else if (entry.getValue().getAsJsonPrimitive().isBoolean())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsBoolean());
                     else
                       throw new IllegalArgumentException(String.format("The field `%s` has unknown primitive type. Value: %s", entry.getKey(), entry.getValue().toString()));
                   } else { // non-primitive type
                     instance.putAdditionalProperty(entry.getKey(), gson.fromJson(entry.getValue(), HashMap.class));
                   }
                 }
               }
               return instance;
             }
  
         }.nullSafe();
      }
    }
  
   /**
    * Create an instance of InvoiceItemOpenModel given an JSON string
    *
    * @param jsonString JSON string
    * @return An instance of InvoiceItemOpenModel
    * @throws IOException if the JSON string is invalid with respect to InvoiceItemOpenModel
    */
    public static InvoiceItemOpenModel fromJson(String jsonString) throws IOException {
      return JSON.getGson().fromJson(jsonString, InvoiceItemOpenModel.class);
    }
  
   /**
    * Convert an instance of InvoiceItemOpenModel to an JSON string
    *
    * @return JSON string
    */
    public String toJson() {
      return JSON.getGson().toJson(this);
    }
  }
  
  